VAR8 and Variants Operation, Commissioning, Fault Finding, and Maintenance Guide -
Is
Page 11 of 166
sue: 02 complete, approved
Indicators and Controls Description
1
LCD Display
2 x 40 backlit alphanumeric display. Used to display the control
menu, faults, and configuration data.
power
green Lit only if the unit is receiving DC power from both
sources.
processor
green Flashes to show that the processor is healthy.
comms
green
Lit to indicate communication activity between the main processor
and the amplifier units. Flashes on receipt of a message from an
amplifier unit.
2
LED
fault
amber
Lit to indicate that the unit has detected a system fault.
Flashes if a fault has not yet been accepted.
W
X
The left and right arrow keys move the item selection in the
direction selected, to the next item in the menu. The selected item
is indicated by [brackets] around the selection.
S
T
The up and down arrow keys toggle a selection, or increment a
number, or a letter of the alphabet when editing.
The rotary encoder acts in the same manner as these keys, and
enables faster editing.
SELECT
Press after selecting an item to confirm the selection.
BACK
Press after selecting an item to cancel the selection.
If pressed repeatedly, this returns the display to the top-level menu.
DEFAULT
Press to clear previously configured text strings quickly during
system configuration, or to return fields to their default values.
FAULT ACCEPT
Accepts all current faults, steadies the flashing fault LED indication,
and turns off the audible alarm until a new fault condition occurs.
FAULT CLEAR
Clears all faults and sets all connected equipment to the 'no faults'
state, which also cancels any Amplifier Changeovers in effect. If
there are any faults present in the system then they are detected
anew, and reported again.
AUDIO MON
Selects Audio Monitor sub-menu on the LCD display.
3
Keys
LAMP TEST
Tests all indicators on the VAR8 and on all connected amplifier
units. The sounder is also tested. The display shows ‘LAMP +
SOUNDER TEST’ and the menu locks during this time.
This function is also available from the ‘Tests’ menu.
4
Rotary Encoder
Multi-function:
• An alternative for the S and T arrow keys for fast increment
and decrement of menu items.
• During Audio Monitoring it also acts as a Volume Control.
5
Loudspeaker Dual function: Alarm Sounder and Audio Monitor.
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